Single-Hole Filter Intake Sponge: Size 1" ID × 2.2" OD × 4" L. These foam covers are perfect replacement for pre-filter sponges. Aquarium must-have accessories for fish tank filters.
Life Saver for Fish: The anti-suction aquarium sponge can be easily attached to the water inlet of the fish tank filter. Effectively prevent shrimp, fish fry or weaker inhabitants from being sucked into the filter.
Mechanical Filtration: The pre-filter sponges can effectively trap debris, food residue, wastes, plants or other impurities in water. Prevent them from entering the filter to maintain a healthy water environment.
High-Density Sponge: The filter intake sponges are made of soft and safe foam with high elasticity. And they won’t block the normal water flow due to the fluffy inner structure.
Easy to Install: Simply replace the pre filter sponge with a new one. An essential replacement foam cover for the water inlet cover of a pre-filter. Ideal for freshwater and marine aquariums.
